public static void HideCheckBox(this TreeNode node) { TreeViewExtensions.TVITEM tVITEM = default(TreeViewExtensions.TVITEM); tVITEM.hItem = node.Handle; tVITEM.mask = 8; tVITEM.stateMask = 61440; tVITEM.state = 0; TreeViewExtensions.SendMessage(node.TreeView.Handle, 4415, IntPtr.Zero, ref tVITEM); }
private static extern IntPtr SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, ref TreeViewExtensions.TVITEM lParam);